Straddling and/or overriding mitral valve

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A rare congenital non-syndromic heart malformation characterized by an abnormal attachment of the mitral chordae to both ventricles. Straddling mitral valve is usually associated with conotruncal anomalies most commonly double outlet right ventricle or transposition of the great arteries. Overriding mitral valve is characterized by a mitral annulus committed to the two ventricular chambers where the mitral valve is shared between the ventricles. Straddling and overriding mitral valve can occur together or in isolation.

Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on Data version July 2024

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Straddling and/or overriding mitral valve?

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Clinical Trials

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